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Certified backflow testers in Seneca, SC

12 backflow testing businesses work within 25 miles of Seneca, 4 of them based in town. Every one has testers on South Carolina's certified backflow tester roster.

12 businesses within 25 miles
12 for-hire testers based in Seneca

Certified backflow testers near Seneca

What the badges mean
✓ SC Certified Backflow Tester Verified
A state roster lists at least one certified tester at this business, with a current certificate. The state sets the exam and renewal.
3 certified testers
How many certified testers the roster lists at this business.
★ 4.8 (25 reviews)
The Google rating, shown as Google reports it. It does not change the order.

Order is by our quality score, never by payment. How we verify listings.

Are you a backflow testing company near Seneca? One sponsor per county, clearly labelled. Sponsor this county

Roto-Rooter

100/100
✓ SC Certified Backflow Tester Verified #104948128 ★ 4.8 (1414 reviews) 2 certified testers Backflow Testing

500 McGee Rd, Anderson, SC 29625 · 18 mi from Seneca

Call (864) 238-8790 Details Website
Verified Oct 2026 · Unclaimed listing

Swafford Plumbing Llc

90/100
✓ SC Certified Backflow Tester Verified #137312327 ★ 4.5 (43 reviews) 2 certified testers Backflow Testing

133b W Freeman Rd, Westminster, SC 29693 · 10 mi from Seneca

Call (864) 247-6762 Details
Verified Oct 2026 · Unclaimed listing

Glenn Mechanical

90/100
✓ SC Certified Backflow Tester Verified #104123528 ★ 3.3 (12 reviews) Backflow Testing

525 N Main St #200, Anderson, SC 29621 · 21 mi from Seneca

Call (864) 716-0560 Details Website
Verified Oct 2026 · Unclaimed listing

Glenn Plumbing Company

90/100
✓ SC Certified Backflow Tester Verified #104149928 ★ 4.2 (80 reviews) 2 certified testers Backflow Testing

481 E Whitner St, Anderson, SC 29624 · 22 mi from Seneca

Call (864) 224-0781 Details
Verified Oct 2026 · Unclaimed listing

Price reports

What a backflow test costs in Seneca

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Published prices nationwide

$29.99 to $100 per assembly

Based on 14 published prices · Read Oct 2026 Prices testing businesses list on their own websites, from our cost guide. Listed prices, not what people paid.

Every published price, with its source: what a backflow test costs.

Failed test? Published repair, rebuild and replacement prices: what a backflow repair or replacement costs.

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Independent certified testers based in Seneca

Testers South Carolina's roster lists without a company. Names, certificate numbers and phones as the state publishes them.

TownTesterCertificateExpiresPhone
Seneca Christopher T Galloway 137929727 Sep 2027 (864) 723-1079
Brian N Woodard 137908228 Dec 2028 (864) 710-8849

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Backflow testing questions in Seneca

Where are the backflow testing businesses listed for Seneca based?

12 backflow testing businesses are listed within 25 miles of Seneca. 4 are based in Seneca itself, 2 more within 15 miles and 6 further out, up to 22 miles away. Other towns with more than one listing: Anderson (6) and Westminster (2). The closest is Greenstone Construction Llc, under 1 mile from Seneca.

Which tester lists are the businesses near Seneca on?

Every one has testers on South Carolina's certified backflow tester roster. The South Carolina Department of Environmental Services roster was read July 9, 2026. It lists 12 for-hire testers based in Seneca itself. 2 certified testers appear on the roster in Seneca without a company; they are in the table on this page.

How many of the backflow testing businesses near Seneca have Google reviews?

12 of the 12 listed for Seneca have 3 or more Google reviews. Roto-Rooter has the most reviews, 1,414, with an average of 4.8 stars, as Google showed them at our last check.

Roster: South Carolina Department of Environmental Services, read July 9, 2026.

Approved list: Charleston Water System approved backflow prevention assembly testers, Charleston Water System.

Approved list: BJWSA approved backflow testing companies, Beaufort-Jasper Water and Sewer Authority.

Approved list: City of Florence certified backflow testers, City of Florence Utilities.

Approved list: Approved Backflow Test Company List, Charlotte Water.

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